A ka c’a la, mɔgɔw b’o miiria bɛ kɛ fɛn ye min bɛ wele ko valveka nɛgɛ inox ani a tɛna nɔgɔ. Ni o kɛra, a bɛ se ka kɛ gɛlɛya ye nɛgɛ la. Nin ye hakilina jugu ye min bɛ kɛ fan kelen fɛ, nɛgɛ min tɛ sɔgɔ, o fana bɛ se ka nɔgɔ cogo dɔw la.
Se bɛ nɛgɛ min tɛ sɔgɔ, o bɛ se ka fiɲɛ ka oksidan kɛlɛ—o kɔrɔ ye ko a bɛ se ka nɔgɔ kɛlɛ, wa a bɛ se fana ka sɔgɔsɔgɔ asidiw, alkaliw ani kɔgɔw bɛ minnu na—o kɔrɔ ye ko sɔgɔsɔgɔninjɛ kunbɛnni. Nka, a ka sɔgɔsɔgɔninjɛ seko bonya bɛ Changé ni a nɛgɛ yɛrɛ ka kemikaliya ye, a lakanani cogoya, a baaracogo ani a sigida kunnafonidilan suguya.
A ka c’a la, nɛgɛ min tɛ sɔgɔ, o tilalen don nin cogo la:
A ka c’a la, ka kɛɲɛ ni nɛgɛdaga ye, nɛgɛ gansan tilalen don kulu saba ye: nɛgɛ min tɛ sɔgɔ ostenitiki, nɛgɛ min tɛ sɔgɔ feriti ye, ani nɛgɛ min tɛ sɔgɔ martensitiki. Nin nɛgɛdaga jɔnjɔn saba ninnu kan, mago kɛrɛnkɛrɛnnenw n’a kun kɛrɛnkɛrɛnnenw kama, nɛgɛ minnu bɛ kɛ fasa fila ye, nɛgɛ minnu bɛ sanji gɛlɛya, nɛgɛ minnu bɛ kɛ ni nɛgɛ ye, nɛgɛ minnu bɛ kɛ ni nɛgɛ caman ye, nɛgɛ hakɛ min tɛ 50% bɔ, olu bɛ sɔrɔ.
1. Austenitic nɛgɛ min tɛ sɔgɔ.
Matirisi in fanga ka bon ni ɔsteniti jɔcogo ye (CY fasa) ɲɛda cɛmancɛ-kristali kubik jɔcogo la, min tɛ magɛnni ye, wa a barika ka bon kosɛbɛ ni nɛnɛ baara ye (wa a bɛ se ka kɛ sababu ye ka magɛnni jogo dɔw sɔrɔ) nɛgɛ min tɛ sɔgɔ. Ameriki nɛgɛ ni nɛgɛso baarada bɛ tɔgɔ da ni jatedenw ye minnu bɛ 200 ni 300 seriyali kɔnɔ, i n’a fɔ 304.
2. Fɛɛrɛti min bɛ kɛ ni nɛgɛ ye min tɛ sɔgɔ.
Matirisi ye min fanga bɛ sɔrɔ feriti jɔcogo fɛ ((fasa dɔ) farikolo cɛmancɛ kristalɛ kubik jɔcogo la, min ye magɛnni ye, wa a ka c’a la, a tɛ se ka gɛlɛya ni funteni furakɛli ye, nka a bɛ se ka barika bonya dɔɔnin ni nɛnɛ baara ye.Amerika nɛgɛ ni nɛgɛso baarada taamasiyɛn ye 430 ani 446 ye.
3. Martensitic nɛgɛ min tɛ sɔgɔ.
Matirisi ye martensitiki jɔcogo ye (farikolo cɛmancɛ kubik walima kubik), magɛnni, wa a masinko bɛ se ka ladilan ni funteni furakɛli ye. Ameriki nɛgɛ ni nɛgɛso baarada in tɔgɔ ye ko nimɔrɔ 410, 420 ani 440. Martɛniti jɔcogo bɛ a la ni a funteni ka bon, wa ni a nɛnɛna ka se so funteni ma ni hakɛ bɛnnen ye, ɔsitɛni jɔcogo bɛ se ka wuli ka kɛ martɛniti ye (o kɔrɔ ye ko a gɛlɛyara).
4. Austenitic-ferritic (duplex) nɛgɛ min tɛ sɔgɔ.
Matirisi in bɛ ni ɔstɛni ni feriti fila bɛɛ ye fasa fila ye, wa fasa dɔgɔman matirili kɔnɔfɛnw ka ca ni 15% ye caman na. A ye magɛnni ye, wa a bɛ se ka barika sɔrɔ nɛnɛ baara fɛ. 329 ye duplex inox ye min bɛ kɛ cogoya la. Ni an y’a suma ni ɔstenitiki nɛgɛ ye min tɛ sɔgɔ, nɛgɛ min bɛ fasa fila la, fanga ka bon, wa a ka se ka sɔgɔsɔgɔninjɛ ni kuloridi degun sɔgɔli ni pitting sɔgɔli kunbɛn, o bɛ ɲɛ kosɛbɛ.
5. Sanji ka gɛlɛya min bɛ kɛ ni nɛgɛ ye min tɛ sɔgɔ.
Matirisi ye ɔstɛni walima martɛnsi ye wa a bɛ se ka gɛlɛya ni sanjiko gɛlɛya ye. Ameriki nɛgɛ ni nɛgɛso baarada taamasiyɛn ye 600 seriyali nimɔrɔ ye, i n’a fɔ 630, o ye 17-4PH ye.
A ka c’a la, ka fara nɛgɛdaga kan, austenitic inox ka sɔgɔli kunbɛncogo ka ɲi kosɛbɛ. Lamini min tɛ sɔgɔ kosɛbɛ, nɛgɛ min tɛ sɔgɔ feriti ye, o bɛ se ka kɛ. Lamini min bɛ sɔgɔsɔgɔ dɔɔni, ni a ɲininen don fɛn in ka kɛ ni fanga ye walima a gɛlɛya ka bon, nɛgɛ min tɛ sɔgɔ martensitiki ye ani nɛgɛ min bɛ sanji gɛlɛya, nɛgɛ min tɛ sɔgɔ, o bɛ se ka kɛ.
A ka ca a la, nɛgɛ inox grades ani properties
01 304 Nɛgɛ inox
O ye nɛgɛ ye min bɛ kɛ ka caya ani min bɛ kɛ ka caya ani min bɛ kɛ ka caya, n’o ye ɔstenitiki nɛgɛ ye min tɛ sɔgɔ. A bɛnnen don yɔrɔw dilanni ma minnu bɛ sama ka dun ani asidi pibilikiw, minɛnw, jɔli yɔrɔw, minɛn suguya caman, a ɲɔgɔnnaw A bɛ se ka kɛ fana ka minɛnw ni yɔrɔ dɔw dilan minnu tɛ magɛnni ye, minnu funteni ka dɔgɔn.
02 304L Nɛgɛ inox
Walasa ka gɛlɛya ɲɛnabɔ min ye ultra-low carbon austenitic inox steel ye min yiriwara ka da Cr23C6 sanjibɔli kan min bɛ kɛ sababu ye ka 304 inox (304 inox) sɔgɔli jugumanba sɔrɔ cogo dɔw la, a ka sensitized state intergranular corrosion resistance ka fisa kosɛbɛ ni 304 inox ta ye. N’a ma fɔ fanga dɔgɔyali dɔɔnin, a nafa wɛrɛw ni 321 nɛgɛ inox ye kelen ye. A bɛ kɛ kɛrɛnkɛrɛnnenya la minɛnw ni fɛn minnu tɛ se ka sɔgɔ, n’u tɛ se ka furakɛli kɛ ni jilama ye solda kɔfɛ, wa a bɛ se ka kɛ ka minɛn farikolo suguya caman dilan.
03 304H Nɛgɛ inox
Nɛgɛ 304 kɔnɔna bolofara ka karɔbɔli hakɛ ye 0,04%-0,10% ye, wa a ka funteni baarakɛcogo ɲuman ka fisa ni nɛgɛ 304 ta ye.
04 316 Nɛgɛ min tɛ sɔgɔ
Ni aw ye molibdɛni fara a kan 10Cr18Ni12 nɛgɛ kan, o b’a to nɛgɛ bɛ se ka se ka sɔgɔli kɛ cɛmancɛ ni dingɛ kɔnɔ. Kɔgɔji ji ni fɛɛrɛ suguya wɛrɛw la, sɔgɔli kunbɛnni ka fisa ni nɛgɛ 304 ye min tɛ sɔgɔ, o min bɛ kɛ kɛrɛnkɛrɛnnenya la fɛnw ye minnu bɛ se ka dingɛw kɛlɛ.
05 316L Nɛgɛ inox
Nɛgɛ min ka carbone ka dɔgɔ kosɛbɛ, o bɛ se ka sɔgɔsɔgɔ ka ɲɛ, wa a bɛnnen don yɔrɔw ni minɛnw dilanni ma minnu dilannen don ni solda ye, minnu dakunw hakɛ ka bon, i n’a fɔ fɛnw minnu bɛ se ka sɔgɔ petoroli minɛnw kɔnɔ.
06 316H Nɛgɛ inox
316 nɛgɛ min tɛ sɔgɔ, o kɔnɔna bolofara ka karɔbɔli hakɛ ye 0,04%-0,10% ye, wa a ka funteni baarakɛcogo ɲuman ka fisa ni nɛgɛ 316 ye.
07 317 Nɛgɛ inox
Pitting corrosion resistance ani creep resistance ka fisa ni 316L inox ye, o min bɛ kɛ ka petoroli ni asidi organique corrosion resistance minɛnw dilan.
08 321 Nɛgɛ inox
Titanium-stabilisé austenitic inox, ka titanium fara a kan walasa ka intergranular corrosion resistance ɲɛ, wa a ka masinko ɲuman bɛ funteni caman na, o bɛ se ka bila a nɔ na ni ultra-low carbon austenitic inox steel ye. N’a ma fɔ ko kɛrɛnkɛrɛnnenw i n’a fɔ funteni caman walima hidrɔzɛni sɔgɔli, a ka ca a la a man ɲi ka kɛ.
09 347 Nɛgɛ inox
Niobium-stabilized austenitic stainless steel, ka niobium fara a kan walasa ka intergranular corrosion resistance ɲɛ, corrosion resistance min bɛ asidi, alkali, kɔgɔ ani corrosive media wɛrɛw la, o ni 321 stainless steel ye kelen ye, welding performance ɲuman, a bɛ se ka kɛ corrosion-resistant material ye ani anti-corrosion Nɛgɛ funteni bɛ kɛ kosɛbɛ funteni fanga ni petrochimique forow la, i n’a fɔ minɛnw, pibilikiw, funteni-falen-falen-minɛnw, jirisunw, foro tubabuw dilanni izini forow kɔnɔ, ani foro tubabukan funteni jateminɛnanw.
10 904L Nɛgɛ inox
Super complete austenitic stainless steel ye super austenitic inox suguya dɔ ye min dabɔra OUTOKUMPU fɛ Finlande jamana na. , A bɛ se ka sɔgɔsɔgɔ ka ɲɛ asidi minnu tɛ oksidan ye i n’a fɔ asidi sulfuriki, asidi asetiki, asidi foromiki ani asidi fosifɔriki, wa a bɛ se ka sɔgɔsɔgɔ ka ɲɛ fana ka sɔgɔsɔgɔninjɛ ni degun sɔgɔli kunbɛn. A bɛnnen don asidi sulfuriki hakɛ suguya caman ma min bɛ 70 duguma°C.
11 440C nɛgɛ min tɛ sɔgɔ
Martensitic inox de ka gɛlɛn ka bon nɛgɛ inox gɛlɛnw ni nɛgɛ inox cɛ, a gɛlɛya ye HRC57 ye. A bɛ kɛ kɛrɛnkɛrɛnnenya la ka bulɔguw, birikiw, .nfirinfirininvalve (valve) ye koriw, .nfirinfirininvalve (valve) ye sigilanw, bololanɛgɛw, .valve (valve) ye jirisunw, a ɲɔgɔnnaw.
12 17-4PH nɛgɛ min tɛ sɔgɔ
Martensitic precipitation hardening stainless steel min ka gɛlɛn ye HRC44 ye, a fanga ka bon, a ka gɛlɛn ani a bɛ se ka sɔgɔsɔgɔ, wa a tɛ se ka kɛ ni a funteni bɛ tɛmɛ 300 kan°C. A bɛ se ka sɔgɔsɔgɔ ka ɲɛ fiɲɛ na ani asidi walima kɔgɔ min dilannen don. A ka sɔgɔsɔgɔninjɛ ni nɛgɛ 304 ni nɛgɛ 430 ta ye kelen ye. A bɛ kɛ ka kɔgɔjida la plateformes, turbine blades, .nfirinfirininvalve (valve) ye (valve cores, valve sigilanw, bolokɔniw, valve stems) wait.
In valve (valve) ye dilancogo ni sugandili, sigida suguya caman, seriw, ani nɛgɛdaga suguya caman bɛ sɔrɔ tuma caman na. Ni aw bɛ sugandili kɛ, gɛlɛya ka kan ka jateminɛ ka bɔ yɔrɔ caman na i n’a fɔ baarakɛcogo kɛrɛnkɛrɛnnen, funteni, tansiyɔn, yɔrɔw minnu bɛ degun, sɔgɔli, ani musaka.
Poste waati: Zuluyekalo-20-2022
